R1240K003A-TR Просмотр технического описания (PDF) - RICOH Co.,Ltd.

Номер в каталоге

Компоненты Описание

производитель

R1240K003A-TR

1.2A 30V Input PWM Step-down DC/DC Converter

RICOH Co.,Ltd. 

R1240x

NO.EA-190-170609

SELECTION GUIDE

In the R1240x, the Package, type of short protection (Latch or Fold-back) can be selected at the user’s request.

Selection Guide

Product Name

Package

R1240K003∗-TR DFN(PLP)2527-10

R1240N001∗-TR-FE SOT-23-6W

Quantity per Reel

5,000 pcs

3,000 pcs

Pb Free

Yes

Yes

Halogen Free

Yes

Yes

∗: Designation of Optional Function at off state are options as follows.

(A) Latch Type protection

(B) Fold-back Type protection

BLOCK DIAGRAM

VIN

Thermal Shutdown

CE

UVLO

Regulator

5V

Regulator

VFB

Shutdown

Oscillator

(1250kHz/3

10kHz)

-

Reference

+

Soft Start

Circuit(0.4msec) 0.8V

Current Slope

Circuit

SETPULSE

MAXDUTY

-

+

SD

R

Limit Latch

Circuit (2msec)

(Ver.A only)

Peak Current

Limit Circuit

R1240x Block Diagram

2

BST

Lx

GND

Share Link: